Wednesday, June 5, 2013

Many children and long breastfeeding reduced the risk of breast cancer. The report Valerie Beral of the British Cancer Research Foundation cancer research in Oxford and her colleagues in the British journal Lancet. Therefore, women can reduce the risk of breast cancer through an annual lactation by around five percent, and by each birth to seven percent. These results can with explain the discrepancy between the low cancer rates in developing countries and the increase in prosperity societies experts. Women in the industrialized world have a 6 3-percent likelihood of developing breast cancer until the age of 70. In contrast, the risk in developing countries is only 2.7 percent.

The physician had summary analysed 47 epidemiological studies from 30 countries. Information on the nursing behavior and the number of children of 50.302 breast cancer patients as well as 96.973 women without breast cancer were taken into account. Only 25,000 cases of breast cancer in developed countries were annually to avoid when the mothers would breastfeed their children longer than six months, the scientists write. However, the researchers do not have an explanation for the positive impact of breastfeeding on the risk of breast cancer.

A positive effect of breastfeeding and childbearing for the risk of breast cancer, there had been earlier many references. So, an in-house study had reported the German Cancer Research Centre in Heidelberg, Germany two years ago after a lactation period of 13 to 24 months can reduce the risk of breast cancer of women by up to 42 percent. The German researchers, but also guilty remained an explanation. It has probably something with hormones to do, said Foundation Chairman of cancer research UK, Sir Paul nurse, at a press conference in London.